Look for the really obvious:
Any LEDs light up on the tuner? If not, it has no power
Do you have TV ptions on the DVD player? If not, then the DVD player has wrong software loaded
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XC90 R-Design MY2009, Black Sapphire Metallic. HP-Sound, RSE, Nav, Tel, ParkingCam, BLIS, ParkingHeater, RestHeat, Removable Towbar, Summer: CRATUS 20x8 on Pirelli Scorpion Zeros 255/45, Winter: NEPTUNE 17x7 on Continental WinterContact 4x4 235/65.
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